BirdAnalyst
Species · Oregon · BBS 2025 Release · 1966–2024

Red-winged Blackbird Population Trend in Oregon

All statesGeneralists

Red-winged Blackbird in Oregon has risen sharply: up 71% on the route-weighted index since 1970.

+71%Since 1970
123Routes In State
56Years

Notable Red-winged Blackbird Trends in Oregon

long arc increasecomputed index

Red-winged Blackbird has risen sharply in Oregon: up 71% on the route-weighted index since 1970.

Red-winged Blackbird Population Forecast in Oregon

If the recent trend holds, Red-winged Blackbird in Oregon is projected to fall about 21% by 2029 — from 17 in 2024 to a central estimate of 14 (95% range 0.00–29). A 5-year backtest shows a typical error of ±22.7%, with 100% of held-out values landing inside the 95% band.

-21%Change by 2029
14Projected 2029 index
0.00–2995% range
±22.7%Backtest error
19682029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
2025150.0030
2026140.0030
2027140.0030
2028140.0029
2029140.0029

Red-winged Blackbird Survey Routes in Oregon

Routes recording Red-winged Blackbird in Oregon.
Bridgeport32820221986
Umatilla23520231988
Fish Lake16920241972
Sheaville15820242012
Sparta13220011971
Merrill9820221993
Dayton8420241973
Warner Vally8320241993
Modoc Point7920181969
Trout Creek7920211996
Princeton7019851972
Joseph6920241971
Alvord Lake6820241968
Bly6720011973
Modoc Point 26120242024
Ochoco6019821972
Deschutes5820241968
Adair5820241971
Nicolai Mtn.5720241993
Chinchalo5520241993
Derby4419931968
Ordnance4219791971
Pendleton4020241972
Donnybrook3919971997
Barnes Val3719871971

Red-winged Blackbird Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.